Frost dates across Iowa
Typical last spring frost, first fall frost, and USDA zone for 4 Iowa cities, from 30-year NOAA climate normals. Every date is a 50 percent odds line, not a promise. Pick a city for the full frost window and what is plantable there now.
| City | Last spring frost | First fall frost | Season length | Zone |
|---|---|---|---|---|
| Des Moines | Apr 23 | Oct 15 | about 175 days | 5b |
| Cedar Rapids | Apr 28 | Oct 12 | about 167 days | 5b |
| Davenport | Apr 23 | Oct 15 | about 175 days | 5b |
| Sioux City | Apr 29 | Oct 7 | about 161 days | 5a |
Row & Bed is a plant reference built around your garden: your zone, your frost dates, your forecast, and a cited page for every variety in your beds.
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